Spring-hinge.



M. FURUYA.

SPRING HINGE.-

APPLIGATION FILED JUNE 1a, 1913.

Patented 0G13. 21, 1913.

wim/5885s ATTORNEYS COLUMBIA PLANonRAPIgl-CQ..wAsHxNnToN, n. c.

MOTOICHI FURUYA., OF NEW YGRK, N. Y.

SPRNGHINGE Speccation of Letters Patent.

Patented (1ct. 21,1913.

Application filed June 13, 1913. Serial No. 773,416.

To all fro/0m t may concern Be it known that l, Mo'roierri FUR'UYA, a subject of the Mikado of Japan, and a resident of the city of New York, borough of Manhattan, in the county and State of N ew vYork, have invented a new and Improved Spring-lnge, of which the following is a full, clear, and exact description.

This invention relates to improvements in spring hinges and has for an object to provide a spring hinge with a pair of pivotally connected leaves, and a spring structure acting on the leaves normally for maintaining the same in a certain position, the hinge and the spring having associated therewith a lock for locking `the spring against operation in one direction when the leaves have been opened to a certain extent in order to allow the leaves to move back and forth pivotally freely within certain limits'.

A still further object of the invention is to provide a spring hinge for doors which will permit the doors to be opened to a certain extent and allow the doors to remain open while normally closing the doors when not opened to the predetermined extent mentioned.

A practical embodiment of the invention is represented. in the accompanying drawings forming a part of this specification in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side view of a door to which is connected a spring hinge disclosing an embodiment of the invention; Fig. 2 is a perspective view of one of the leaves and its corresponding barrels; Fig. 3 is a side view of the pint-le, springs, and associated parts; Fig. 4L is a perspective view of the opposite leaf to that shown in Fig. 3, its corresponding barrel being connected therewith; Fig. 5 is a longitudinal vertical section through the barrel of the hinge with the hinge, spring and associated parts assembled; Fig. 6 is a fragmentary sectional view similar to Fig. 5, except that the various parts are shown in different positions; and Fig. 7 is a detail fragmentary perspective view of the locking member.

Referring to the accompanying drawings by numerals, 1 indicates a door casing of any kind, and 2 a screen door. In mounting the screen door 2. a hinge 4 of any desired structure may be used, and in connection therewith a spring hinge 5 embodying the invention may also be used. The hinge 5 is provided with leaves (l and 7, the leaf 6 having barrel portions 8 and 9, and leaf 7 having barrel portions 10 and 11. These barrel portions are designed to properly interlock and accommodate pintle members 1Q and 18. Fintle member 13 carries a sleeve 14 which is rigidly secured thereto by any desired means, as for instance a pin or rivet, and is formed with a notch 15 whereby an abutment 16 is provided. The projection or abutment 17 formed on the tubular portion 9, is designed to co-act with abutment 16 in order to allow spring 18 which is rigidly secured to pintle member 13, to act on leaf G for moving the same to a closed position. The pintle member 12 is secured rigidly to the barrel member 1G by any desired means, as for instance a pin 19. In assembling the device, the spring 18 is compressed sufficiently for continually giving member 141-V a tendency to press against projection 17 for holding the leaf (l in a closed position. Arranged in the barrel 11 is a locking member 2O which has an operating handle 21 extending through a suitable slot 22 in the barrel portion 11. This locking member is provided with a notch 23 which results in a projection Qet designed to act against the projection Q5 (Fig. 3) at the lower end of pintle member 13. A spring 2G continually acts on locking member 20 for giving the same a tendency to move upwardly or into the notch Q7 opposite the projection 25. As pin 21 is in slot 22, locking member 20 cannot rotate so that when locking member 20 has the projection 24; fitting into notch 27, the pintle member 18 cannot rotate, but leaf 6 may be moved freely in one direction but cannot be moved in the opposite direction by reason of shoulder 17 striking against abutment 16. ln arranging the locking member 20, the same is arranged in the barrel portion 11 so as to engage the projection 25 on pintle member 13 when leaf G is at sul stantially right angles to the leaf 7. In this way when the door 2 is moved through ninety degrees of a circle, the same will re main open until pin 21 has been pressed, which will lower locking member 20 and allow member 13 to rotate until shoulder or abutn'ient` 16 engages the projection 17.

Having thus described my invention 1 claim as new and desire to secure by Letters Pat-ent:-

l. ln a spring hinge of the class described,

a pair of leaves provided with interlocking barrelv portions, a pintle for said barrel. por* tions divided into an upper section and a lower section, said upper section being secured to the barrel portion of one of said leaves and the lower section oi said pintle being 'freely rotatable, an interlocking projection arranged on said lower section tor engaging the leaf not secured to said upper section, an operating spring connecting said upper section and said lower section, whereby when said springl is under Atension the leaves will tend to move in opposite directions, a sliding locking member designed to interlock with the lower section of said pintle, and an auxiliary spring acting on said looking member for causing the same to engage and lock said lower section against Ymovement, whereby the leaves may be swung back and forth freely.

2. In a spring hinge of the class described, a pair of leaves, an upper pintle member for connecting said leaves together, a freely rotatable lower pintle member, a stop rigidly connected with said lower pintle member adapted to press against one of said leaves, a spring having its opposite ends secured to said pintle members, said second mentioned pint-le members being formed with a proj ection, a locking member, and means continually tending to move said locking member in the path of movement of said projection.

3. ln a spring hinge of the Vclass described, a pair of leaves, each of said leaves being normes formed with an 'upper and a lower barrel `member, the lower barrel member on one of said leaves being provided with aV projection, an upper pintle member for connecting the upper barrel members of both of said leaves, means for rigidly connecting said upper pintle member with one of said lea-ves, a lower pintle member, said lower pintle member projecting through the barrel member formed with a projection, a sleevesurround ing said lower pintles formed with a projection designedr to interlock .vitlithe projection on said barrel member, said lower pintle member being formed with a projection at the lower end thereof, a spring .connecting said pintle members, a locking member arranged in one of the lower barrel members, said locking member being formed with a projection designedv to be moved into they path oi' movementoi` the projection arranged at the bottom of said second men-V tioned pintle member,- a spring acting on said locking member for Ycontinually tending to move the same, and an operating member for moving said locking member out oi' 'the path of movement of the projection on said lower pintle member.

in testimony whereof l have signed my name to this specilicatien inv the presence of two subscribing witnesses.

' lilO'iOlCHl FURUYA. Vitnesses I A. L. Kiwanis, y

Priimr D. RoLLnAUs.

Copies of this patent may be obtained for ive cents each, by addressing the k Gommissonei` of Patents,

Washington, D. C. i 

